H2SO4+2NaOH→Na2SO4+2H2O
3CaCl2+2H3PO4→Ca3(PO4)2↓+3HCl
Pb(NO3)2+Na2S→2NaNO3+PbS↓
Na2SO3+2HCl→2NaCl+SO2+H2O
Na2CO3+2HCl→2NaCl+CO2+H2O
CuCl2+2NaOH→Cu(OH)2↓+2NaCl
H2SO4+2NaOH→Na2SO4+2H2O
3CaCl2+2H3PO4→Ca3(PO4)2↓+3HCl
Pb(NO3)2+Na2S→2NaNO3+PbS↓
Na2SO3+2HCl→2NaCl+SO2+H2O
Na2CO3+2HCl→2NaCl+CO2+H2O
CuCl2+2NaOH→Cu(OH)2↓+2NaCl